function keyLogin() {
    if (event.keyCode == 13)  //回车键的键值为13
        document.getElementByIdx_x("input").click(); //调用登录按钮的登录事件
}


var isShow = true;

function change() {
    var v = document.getElementById("pass");
    if (isShow) {
        v.type = "text";
        isShow = false;
    } else {
        v.type = "password";
        isShow = true;
    }
};






  